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Cabletron Systems 2M46-04R User Manual

Page 116

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Chapter 5: Local Management

5-68

2M46-04R/2M46-04RDC User’s Guide

Multicast Pkts (Read-only)

The Multicast Pkts field displays the total number of good frames
received that were directed to a multicast address. The value of this field
does not include frames directed to the broadcast address.

CRC Align Errors (Read-only)

This field displays the number of frames with bad Cyclic Redundancy
Checks (CRC) received from the network. The CRC is a 4-byte field in
the data frame that ensures that the data received is the same as the data
that was originally sent.

Undersized Pkts (Read-only)

This field displays the number of frames received whose size was less
than the minimum Ethernet frame size of 64 bytes, not including
preamble, but have a valid CRC.

Oversized Pkts (Read-only)

This field displays the number of frames received whose size exceeded
1518 data bytes, not including preamble, but have a valid CRC.

Fragments (Read-only)

This field displays the number of received frames that are not the
minimum number of bytes in length or received frames that had a bad
CRC, and were less than 64 bytes in length (excluding framing bits, but
including CRC bytes).

Jabbers (Read-only)

This field displays the total number of frames that were greater than 1518
bytes and had a bad CRC.

Total Packets (Read-only)

This field displays the total number of frames (including bad frames,
broadcast frames, and multicast frames) received on this interface.

NOTE

It is normal for the Fragments field to increment. This is
because the RMON agent increments the field when runts
(undersized frames) are detected (which are normal
occurrences due to collisions) and when noise hits occur.

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